Prepare against Leonard Marciniak
Poland · World #31,252 classical · FIDE ID 21850801
When preparing against Leonard Marciniak, expect 1.d4 in 49% of White games. Against 1.e4 the reply is 1...c5 (53% of games); against 1.d4, 1...d5 (70%).
Our database contains 89 games by Leonard Marciniak, covering May 2016 to Sep 2026. Below you'll find Leonard Marciniak's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Leonard Marciniak before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,979 | 1,982 | Jul 2026 |
| Rapid | 1,955 | 1,955 | Sep 2026 |
| Blitz | 1,942 | 1,943 | Apr 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 89 | 20 | 31 | 38 | 22.5% |
| As White | 45 | 10 | 18 | 17 | 22.2% |
| As Black | 44 | 10 | 13 | 21 | 22.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Leonard Marciniak's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Leonard Marciniak's side.
First moves as White (45 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 22 | 48.9% | 45.5% |
| e4 | 18 | 40.0% | 41.7% |
| c4 | 4 | 8.9% | 37.5% |
| b3 | 1 | 2.2% | 0.0% |
Main lines as White
- 1.d4 — 49% of White games, 45.5% score
- …Nf6 (59% of these games) — Marciniak usually continues c4 (25.0% score)
- …d5 (18% of these games) — Marciniak usually continues Nf3 (75.0% score)
- …f5 (9% of these games) — Marciniak usually continues Nc3 (100.0% score)
- 1.e4 — 40% of White games, 41.7% score
- …c5 (50% of these games) — Marciniak usually continues Nf3 (31.3% score)
- …c6 (28% of these games) — Marciniak usually continues c4 (33.3% score)
- …d6 (11% of these games) — Marciniak usually continues d4 (50.0% score)
As Black against 1.e4 (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 10 | 52.6% | 35.0% |
| e6 | 5 | 26.3% | 40.0% |
| e5 | 4 | 21.1% | 50.0% |
As Black against 1.d4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 7 | 70.0% | 42.9% |
| Nf6 | 3 | 30.0% | 33.3% |
Leonard Marciniak's chess games
All 89 games by Leonard Marciniak in the Chess.ceo database (May 2016 - Sep 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 20 wins, 31 draws, 38 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D77 | King's Indian Defense | 4 | 0/0/4 | 0.0% |
| A16 | English Opening | 3 | 1/0/2 | 33.3% |
| B51 | Sicilian: Moscow Variation | 3 | 0/3/0 | 0.0% |
| B30 | Sicilian | 3 | 1/0/2 | 33.3% |
| D02 | Catalan | 3 | 1/1/1 | 33.3% |
| B10 | Caro-Kann | 3 | 1/0/2 | 33.3% |
| A80 | Dutch Defense | 2 | 2/0/0 | 100.0% |
| B07 | Philidor | 2 | 0/2/0 | 0.0% |
| A13 | English Opening: Neo-Catalan | 2 | 0/2/0 | 0.0% |
| A44 | Benoni Defense | 2 | 0/2/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A07 | Réti Opening | 6 | 2/1/3 | 33.3% |
| D10 | Slav Defense | 4 | 1/2/1 | 25.0% |
| B29 | Sicilian | 3 | 1/1/1 | 33.3% |
| B34 | Sicilian: Accelerated Dragon | 3 | 0/2/1 | 0.0% |
| A16 | English Opening | 3 | 1/0/2 | 33.3% |
| C07 | French: Tarrasch Variation | 2 | 0/0/2 | 0.0% |
| C42 | Petrov's Defense | 2 | 1/0/1 | 50.0% |
| B30 | Sicilian: Rossolimo | 2 | 0/1/1 | 0.0% |
| C13 | French: Classical Variation | 1 | 0/0/1 | 0.0% |
| A36 | English Opening: Reverse Sicilian | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Dec 2021 | Patryk Chylewski | 2,303 | ch-POL U20 | E70 |
| Oct 2023 | Jan Golecki | 2,183 | ch-POL U20 | C44 |
| Jun 2026 | Lukasz Kumor | 2,090 | ch-Malopolska 2026 | B29 |
| Jun 2024 | Bartosz Przybylski | 2,085 | Krakow ICC Open B | A16 |
| Sep 2022 | Hubert Ratajczak | 2,056 | POL-chT 2nd League | A45 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-POL U20 | 2023 | 27 | 12 | 1,901 |
| ch-POL U18 | 2021 | 9 | 3.5 | 1,828 |
| Poronin Tatra Limba Open | 2021 | 8 | 3.5 | 2,019 |
| ch-Malopolska 2026 | 2026 | 7 | 3.5 | 2,081 |
| POL-chT 2nd League | 2022 | 7 | 4 | 2,045 |
| Krakow Open B | 2022 | 6 | 2.5 | 1,799 |
| ch-Malopolska | 2025 | 6 | 1.5 | 1,901 |
| DRUŻYNOWE MISTRZOSTWA POLSKI II LIGA 2026 - Mecze 1 - 11 | 2026 | 4 | 1 | 2,035 |
Interactive opening tree from all 89 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Leonard Marciniak's chess games?
89 games by Leonard Marciniak, from May 2016 to Sep 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Leonard Marciniak has played.
What does Leonard Marciniak play on the first move as White?
Across 45 games with White in our database, Leonard Marciniak opens with 1.d4 (49% of games), 1.e4 (40% of games), 1.c4 (9% of games). Against 1.e4 as Black, Leonard Marciniak answers 1...c5 (53% of games), 1...e6 (26% of games), 1...e5 (21% of games). Against 1.d4: 1...d5 (70% of games), 1...Nf6 (30% of games).
What openings does Leonard Marciniak play as White?
As White, Leonard Marciniak's most-played openings in our database are: King's Indian Defense (4 games, 0.0% win rate); English Opening (3 games, 33.3% win rate); Sicilian: Moscow Variation (3 games, 0.0% win rate). The full breakdown of 45 games with White is in the table above.
What openings does Leonard Marciniak play as Black?
As Black, Leonard Marciniak most often plays: Réti Opening (6 games, 33.3% win rate); Slav Defense (4 games, 25.0% win rate); Sicilian (3 games, 33.3% win rate). See the table above for the top ten Black openings across 44 games.
What is Leonard Marciniak's FIDE rating?
Leonard Marciniak is currently rated 1,979 in classical chess, 1,955 in rapid and 1,942 in blitz. Peak classical rating: 1,982 (Jul 2026).
How many games has Leonard Marciniak played?
Our database contains 89 games by Leonard Marciniak, covering May 2016 to Sep 2026. Overall record: 20 wins, 31 draws, 38 losses (22.5% win rate).
How do I prepare against Leonard Marciniak?
89 games by Leonard Marciniak reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.